prepositions ( 介词 ) 常见介词壹.方位介词1. above\over\on\below\under\beneathaboveoverbeneathbelowunderonBe careful, there is a heavy box______ your head.The sun is _____ the mountain in the east.There are some stamps_______the desk.The position he pointed to was _______ the sea level.The little mouse is _____ the table, so it is not easy to find it.overabove onabove\belowunder 2. across\ over\ through\ pastacrossoverthroughpast横穿,穿越, 表示运动发生在物体的表面跨过 越过,表示运动发生在物体的上方穿过,通过表示运动发生在摸物的空间从—经过,表示运动发生在某物的旁边The Great wall winds its way from west to east, ________deserts, ______ mountains, _____ valleys, till at last it reaches the sea. The crowd of people walked _____ the City Hall to the Centre Square.Swim ____ the river, go ___ the street , fly ____ the mountain, _____ the door,\window, a bridge ____ the riveracrossoverthroughpastacross_ across over throughover at 表示在较小的地方 ( 门牌 ); 在某物旁 ( 不确定的地方 ) in 表示在较大的地方 ( 国家 , 城市 ); 在某物范围内 .( 地点的排列顺序是由小到大 ).on 表示在某物上 ( 表面接触 ); road 前用 on, street 前用 in/on; 楼层用 on; farm 前用 on, field 前用 in.on the sixth floor.\ on the farm, on the ground\ a city on the Changjiang river,\ on the left \ on the right3. 表示地点时 at, in, on 的区别 at 116 Changhe Street. at the station\airport\at the theatre\the party\the meeting\ conference----at the end of \ at the bottom of \ at the foot of \---In the world \in Asia\ in the country \in the village\ in the street in the sky\in the lake\ in the woods\ in an armchair\ in hospital \prison \church . 4. 在 --- 上 on 侧重与表面接触 in 侧重与接触的深度We found a square hole ______the west wall.There is a map of the world _...